Comtech EF Data CDM-700 User Manual
Page 158

CDM-700 High Speed Satellite Modem
Revision 5
Remote Control
MN/CDM700.IOM
11–8
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments
for Command
or Response
to Query
Description of Arguments
Response to
Command
Query
(Instruction
Code and
Qualifier)
Response to Query
Tx Frequency
TFQ=
9 bytes
Command or Query.
Tx Frequency:
- IF: 52-88 MHz and 104-176 MHz.
- L-Band: 950-1950 MHz.
Resolution=100Hz.
Example: TFQ=0140.9872
TFQ=
TFQ?
TFQ*
TFQ#
TFQ? TFQ=xxxx.xxxx
(see description of
arguments)
Tx FEC Type
N/A
1 byte
Query only.
Tx FEC coding type, where:
0=Turbo
Example: TFT=0 (which is Turbo coding)
N/A
TFT?
TFT=x
(see description of
arguments)
Tx
Modulation
Type
TMD=
1 byte
Command or Query.
Tx Modulation type, where:
0=QPSK
1=8PSK
2=16QAM
3=Reserved
4=64QAM
Depending on FEC type, not all of these selections will be valid.
Example: TMD=1 (which is 8PSK)
TMD=
TMD?
TMD*
TMD#
TMD?
TMD=x
(see description of
arguments)
Tx FEC Code
Rate
TCR=
1 byte
Command or Query.
Tx Modulation Type, where:
0 = Rate 3/4
1 = Rate 7/8
Depending on FEC type, not all of these selections will be valid.
Example: TCR=0 (which is Rate 3/4)
TCR=
TCR?
TCR*
TCR#
TCR?
TCR=x
(see description of
arguments)
Tx Data Rate
N/A
10 bytes
Query only.
Composite Tx Data rate, in Mbps.
Resolution=1 bps.
Example: TDR=002.047999 (which is 2.047999 Mbps)
N/A TDR? TDR=xxx.xxxxxx
(see description of
arguments)